Submission #1040101

#	Time	Username	Problem	Language	Result	Execution time	Memory
1040101		LaMatematica14	Rectangles (IOI19_rect)	C++17	0 / 100	5076 ms	62464 KiB

rect

#include <bits/stdc++.h>
using namespace std;

long long count_rectangles(vector<vector<int>> a) {
    int n = a.size();
    int m = a[0].size();
    if (n < 3 || m < 3) return 0;
    long long tot = 0;
    for (int i = 1; i < n-1; i++) {
        for (int j = 1; j < m-1; j++) {
            vector<vector<int>> r(n, vector<int> (m));
            vector<vector<int>> col(n, vector<int> (m));
            for (int b = i; b < n-1; b++) {
                for (int c = j; c < m-1; c++) {
                    r[b][c] = max(r[b][c-1], a[b][c]);
                    col[b][c] = max(col[b-1][c], a[b][c]);
                }
            }
            vector<vector<int>> f(n, vector<int> (m, 0));
            for (int t = 0; t < m; t++) f[i-1][t] = 1;
            for (int b = i; b < n-1; b++) {
                for (int c = j; c < m-1; c++) {
                    if (a[i-1][c] <= col[b][c]) break;
                    if (a[b][j-1] <= r[b][c]) break;
                    if (a[b][c+1] <= r[b][c]) continue;
                    f[b][c] = 1;
                    if (a[b+1][c] <= col[b][c]) break;
                    if (!f[b-1][c]) continue;
                    tot++;
                }
            }
        }
    }
    return tot;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 22
• Subtask 5: 0 / 10
• Subtask 6: 0 / 13
• Subtask 7: 0 / 28